Sleeping-car heater.



E. H. GOLD. SLEEPNG GAR HEATER.Y

MPL10/H1011 FILED Nov. ze, 1908,

Patented Mai. ,21, 1911.

UNITED sTATEs EGBERT H. GOLDpOF CHICAGO, ILLINOIS.

SLEEPING-CAR HEATER.

Specification of Letters Patent.

Application led November 23, 1908. Serial No. 464,957.

`To all whom it may concern:

Be it known that l, Eonnirr H. GoLD, ,a citizen of the United States,residing at Clliicago, in the county of Cook and State f Il inois, haveinvented certain new and useful Improvements in Sleeping-Car Heaters, ofwhich the following is a specification.

My'invention relates to a steamheating system yd't-isigned and intendedparticularly for the heating; of railway cars; and the invention has forits object to provide certain new and useful devices, arrangements andconstructions relating to heating systems which will be hereinafter morefully' described.

One of the primary objects of the invention is to provide the radiatingcoil or other radiator with means for checking or preventing` thegradual drip of water of condensation through the controlling means,after the supply of steam to the radiator has been shut oil", therebylesscning the danger of the freezingr'up of the fluid passage ways andvalves of the controlling' means when the latter is located in anexposed position,

is the case with the controller in the ordinary types of steam heating`systems employed on railway cars.

lhc invention is illustrated incertain preferred embodiments in theaccompanying drawings, wherein Figi-ure 1 is a son'iewhat diagrammaticview illustrating the circulating' coil of a car heating system and thecontrolling device thereofv` the former being col'istructcd in"accordance with my invention. Fig. 2 is a similar vien' illnstrath'ngr amodification; and Fig. 3 is a sectional view of the forni of controllershownin the preceding lig'lires.

Like characters of reference indicate like parts in the several iigfuresof the drawings.

ltcferringi iirst to Fig. 1, A represents,-

diag'rannnatically the radiating coil of a car heating' system. whichmay he placed in any desired location within the car, the floor line ofthe latter being indicated in the drawings. B is the stean'x train pipewhich runs the length of the train and is supplied vwith steam from thelocomotive or other source of supply. 7) is a. supply pipe which leadsfrom the train pipe l to the controller The construction of thecontroller K4 This device consists of a casing 10,. divided by a web 11into a. high pressure Chamber 12, and a low likely to injuri` it.advantages of the ordinary steam heating pressure chamber 13 whichcommunicate by a port'lll, closed by a valve 15, the stem of which` 16is connected with a bell crank 17, pivoted to web 18 which supports thccasing 10. Steam enters the chamber. 12 from the train pipe B throngl'ipipe Z1, passes through the usual strainer20, and when valve standsopen, enters the low pressure chamber 13, passing from there throughpipe 21 to radiator A. From the radiator A the steam or water ofcondensation Hows through a pipe 22 into the thermostat chamber 23,formed by a casing 24 attached toweb 18. rlhis chambercontains thethermostat 25 provided with the rod 2G which to the bell crank 17. Thethe top of thermostat 25 so that when radiator A is filled with4st'eai'n and the steam forced ont into the thermostat chamber,thcri'nostat 25 expands and moves the Valve 15 againstv or toward itsseat, thus closing or throttling port 14. With the shutting ,otl ofsteam from the radiator, condensation takes place in thc discharge endofthe radi "ator and as thermostat25cools, ro'd 26 sinks and opens valve1.5,adm1tt1ng a further sup# ply of steam to the radiator. The exposedposition of the Vt-hermostatic controller K beneath the car makes itliablclto be frozen 11p in extremely cold. weather, and partielllarly ifthe supply of steam be shut oil from the radiator A. After steam is shutoff from the radiator there will be a gradual.,l 'coohnpof the pipesanda ,gradual condensation of the steam therein, followed, in theordinary steam heating systems, by a slow dripping' of the water ofcondensation in small amounts througlr the col'itrollingf dc- \-ice,which is located ordinarily at a lower level that the pipes', whichdripping' sometimes continues several hours, the water becoming' colderand colder as tin'ie goes on. rThe danni-.iol' thel con))arativelynarrow passage nays in thc controller becoming,r frozenl is verycx'insidcrahlc in severe weather Patented Mar. 21, 1911.

is pivoted rod 26,1'ests upon and with the controller so clogged withice it'. is obvious that when itis desired to heat the car again aygreat deal of time and trouble may hecxpcnrlcd in thawingyoutorotherwisc clearing the outlet to the system. lvloreovcr. thcfrecyaingi'ip of the somewhat delicate mechanism of the' thermostat isTo obviate t'l'iese dissystcn'is. l provide `one or both ends of myradiator. with means for trappmg a certain preferably of a loop whichlies in a plane at an angle to the horizontal, which loop may beformedi'n and be a part ot the supply or return pipe leading from thecontroller to the radiator or from the radiator to the controller, asthe case may be. In the arrangement shown in Fig. 1, the. pipe 21 isformed I with a loop 54 which stands above the level of the end of theradiator into which `it opens, and the pipe 22 is formed with acorresponding loop 55. With this arrangement the flow of steam to theradiator and the flow of water of condensation therefrom is not checkedduring the ordinary operation of the system, although, of course, ason'lewhat higher degree of steam pressure is'required because of theresistance which the loop offers to the outflow of the water ofcondensation. When, however, steam is shut oif from thefradiator, theloops 54 and 55 will trap a portion, at least, of the water ofcondensation, and obviously, the portion which is last tocondense and iscoldest, and retain the same within the radiator, which being locatedwithin the fcar is not subjected "to the low temperature to whichthe'controller underneath the car is exposed. The danger of thethermostat becoming frozen is therefore veryv considerably decreased.When the steam is turned-on again the accumulated water of condensationin the radiator is blown out and thereafter the system operates in theordinary manner.

In Fig. 2, I have shown a'somewhat modified form of system in-which butone loop or trapping devlce is required. In this case the radiator C' issupplied through the controller by a pi e 56 which leads to a art of theradiator a ove that from which t e discharge pipe 58 leads back to thecontroller. In this case the drip through the valve chambers of thethermostat is very inconsiderable so that ample protection is affordedby the single loop 57 in the pipe 58.

I havevillustrated my invention as applied to the protection of thecontrolling device of a heating `system in which the infiow of st eam iscontrolled by a thermostatic devlce located so as to be affected by thethermostatic condition of the medium at the outlet of thesystem. It isobvious, however, that the device of my invention might be employed inother situations where it is desirable to 4protect a controlling deviceor fluid conduit from the liability to become frozen up by a gradualdripping of water of condensation when such controlling device orconduit is located in an exposed position, and the radiator or .similardevice with which it is connected is located in a more protectedsituation; or generally speaking, when-it is desirable, for any reason,to prevent a gradual drippin from the radiator or like device through te part to he protected, vthrough the controller, or conduit, and topermit the outiiow ot' water of condensation only when there is acertain minimum of pressure above atmospheric pressure in the radiatororthe like.

' I claim:

l. The combination with a car, of a' radiator located within said car, asource of supply of heating fluid, a controlling device for `controllingthe yflow of heating iuid to the radiator, said controlling devicecomprising a thermostat located in an exposed position outside of thecar, anda connecting pipe between the discharge vend of said radiatorand said thermostat, said pipe being Formed with a loop arranged in saidcar so as to trap water of condensation from saidfradiator when theinflow of steam is shut off from the radiator, said loop constituting apart of the main. conduit from -the radiatorto said thermostat, and keptnormally open by the flow of steam therethrough.

'2. In a steam heating y system, the combi-v nation with a'pipe locatedin a protectedposition, of a discharge pipe which extends I i 4into anexposed location, a device for controlling the inflow of steam4 to saidsystem v:loo

comprising a thermostat in communication with said discharge pipe; Aandmeans interposed between said pipe in the protected location and saiddischarge pipe which, while providing a constantly open passage-way forthe outow of water and'steam, when pressure exists in* said system,traps water of condensation in said pipe in the protected location whenthere ceases to be pressure in said system. Y*

, 3. The combination with a radiator lov liocated` in a protectedsituation, of means for.

controlling the supply of steam thereto, a drip pipe leading from saidradiator'to an exposed situation, and means, arranged in a protectedsituation between the radiator/y and the drip pipe, which whilefadaptedto continuously relieve the system of water of condensation duringnormal operation is also adapted to trap the water resulting from thecondensation of steam and retain the same in said system when the supplyof steam 'is shut off fromsaid radiator, substantially as and for thepurpose set forth.

4. Ina heating system, the combination with a radiating element locatedin a protected situation, of akcontrolling device for i controlling theHow of medium to said radiating element which is located in av situa-Aling the supply or' steam thereto, a drip pipe extending outside ot' thecar and arranged Gr. Y. SKINNER, P. H. TRUMAN.

It hereby certified that nLetterslatent No. 987,570, granted March 21,"

tion exposing it to outside temperature, and to discharge Water ofcondensation from the 45 a pipe which' extends from said radiatingradiator, and a trap located in the ca'r and element to saidcont-rolling devicegsaid pipe between the radiator and drip pipe at abeing formed with a loop, continuous therepoint near Where the drip pipeextends out 5 with, which loop extends above the level of ot the car,said trap while being adapted to the rest of said pipe so as to trapWater of continuously relieve said' system of the '50 condensation insaid radiating element. waterot condensation during normal operay 5.111a heating system, the combination tion is also adapt-ed to hold back, inthat with a radiating element located in a propart of the system locatedin the car, the '10 tected situation, of a controlling device waterresulting from the condensation of which is placed in a situationexposing it steam remaining -in that part of tie system 55 -to outsidetemperature, a supply pipe leadlocated in the car, when the supplywjgfsteam ing from said controlling device to `said rais shut ott from ftheradiator, substantially diating element, and a discharge pipe leadas andfor the purpose set forth. loing trom said radiating element to saidcon- 8. The combination with a car, of a heattrolling device, each ot'said last-mentioned ing system comprising a radiator located' 60 pipesbeing 'formed with a loop which loops within the car, a drip pipeextending outextend above the level ofthe rest ot said side of the carand arranged to discharge pipes so as to trap Water of condensation inwater of condensation from the radiator, 20 said radiating element atboth ends thereof. meansfor controlling the supply pit steam Gl Thecombination with a heating systo,the radiator, a connecting pipeextending 65 tem comprising Va radiator located in a proin the car fromthe radiator to the drip tected situation, nieans for .controlling thepipe, and a loop formed in said connecting supply ot steaxn'thereto, adiip pipe leading pipe at a point within the car adjacent to 213 fromsaid radiator and ldisclnirging in an. where the connecting pipe joinsthe drip exposed situationy of Aa trap located in a pipe, said loopwhile adapted to allon7 the 70 protected situation between said radiatorescape from the system of Water of condenand drip pipe, and adjacent tothe point sation during the normal operation being where said drip pipeleads troni the proconstructed so as to extendsuiiiciently above 30tccted situation to the exposed situation, all the level of the rest ot'said connecting pipe so arranged that said trap While continuto trap'and hold back, Within the parts of 75 ously relieving the system fromwater ot saidsystein locatedwithin the car, thewater condensation duringnormal operation is resulting-from the condensation of steam adapted toretain in said systemv the water remaining Within the parts ot saidsystem 35 resulting from the condensation 'of lsteam within the car whenthe steam is shut ott' when steam isshut oit from said radiation. .fromsaid radiator, whereby the drip of 8O ,so as to prevent such finalcondensation water ot 'condensation into the exposed drip from graduallyescaping into said exposed pipe is prevented when steam has been shutdrip pipe. l ott Jfrom the radiator and the pipes of the "'10 7. Thecombination with a railway can, system have become cold. p ot' a heatingsystem comprising a radiator EGBERT H. GOLD. located within the car,means for control Vitnesses:

191i, upon theapplication of Egbert H. Gold, Aof Chicago, Illinois, toran'irnprovement in .Sleeping-Car Heaters, an error appears in theprinted speciication requiring 'correction as follows: Page 1, line 96,theiword that should read than;

and/that the said Letters Patent-should be read with this correctiontherein that the saine may contorni to the record ot .the case in thePatent Uli'ce.

Signed and sealed this 11th day ot April, A. D., 19M. y l

' c. o. Bunnies,

flaming' Uommissz'oner of Patent-'a Correction in Letters PatentNo.,987,570,

ling the supply or' steam thereto, a drip pipe extending outside ot' thecar and arranged Gr. Y. SKINNER, P. H. TRUMAN.

It hereby certified that nLetterslatent No. 987,570, granted March 21,"

tion exposing it to outside temperature, and to discharge Water ofcondensation from the 45 a pipe which' extends from said radiatingradiator, and a trap located in the ca'r and element to saidcont-rolling devicegsaid pipe between the radiator and drip pipe at abeing formed with a loop, continuous therepoint near Where the drip pipeextends out 5 with, which loop extends above the level of ot the car,said trap while being adapted to the rest of said pipe so as to trapWater of continuously relieve said' system of the '50 condensation insaid radiating element. waterot condensation during normal operay 5.111a heating system, the combination tion is also adapt-ed to hold back, inthat with a radiating element located in a propart of the system locatedin the car, the '10 tected situation, of a controlling device waterresulting from the condensation of which is placed in a situationexposing it steam remaining -in that part of tie system 55 -to outsidetemperature, a supply pipe leadlocated in the car, when the supplywjgfsteam ing from said controlling device to `said rais shut ott from ftheradiator, substantially diating element, and a discharge pipe leadas andfor the purpose set forth. loing trom said radiating element to saidcon- 8. The combination with a car, of a heattrolling device, each ot'said last-mentioned ing system comprising a radiator located' 60 pipesbeing 'formed with a loop which loops within the car, a drip pipeextending outextend above the level ofthe rest ot said side of the carand arranged to discharge pipes so as to trap Water of condensation inwater of condensation from the radiator, 20 said radiating element atboth ends thereof. meansfor controlling the supply pit steam Gl Thecombination with a heating systo,the radiator, a connecting pipeextending 65 tem comprising Va radiator located in a proin the car fromthe radiator to the drip tected situation, nieans for .controlling thepipe, and a loop formed in said connecting supply ot steaxn'thereto, adiip pipe leading pipe at a point within the car adjacent to 213 fromsaid radiator and ldisclnirging in an. where the connecting pipe joinsthe drip exposed situationy of Aa trap located in a pipe, said loopwhile adapted to allon7 the 70 protected situation between said radiatorescape from the system of Water of condenand drip pipe, and adjacent tothe point sation during the normal operation being where said drip pipeleads troni the proconstructed so as to extendsuiiiciently above 30tccted situation to the exposed situation, all the level of the rest ot'said connecting pipe so arranged that said trap While continuto trap'and hold back, Within the parts of 75 ously relieving the system fromwater ot saidsystein locatedwithin the car, thewater condensation duringnormal operation is resulting-from the condensation of steam adapted toretain in said systemv the water remaining Within the parts ot saidsystem 35 resulting from the condensation 'of lsteam within the car whenthe steam is shut ott' when steam isshut oit from said radiation. .fromsaid radiator, whereby the drip of 8O ,so as to prevent such finalcondensation water ot 'condensation into the exposed drip from graduallyescaping into said exposed pipe is prevented when steam has been shutdrip pipe. l ott Jfrom the radiator and the pipes of the "'10 7. Thecombination with a railway can, system have become cold. p ot' a heatingsystem comprising a radiator EGBERT H. GOLD. located within the car,means for control Vitnesses:

191i, upon theapplication of Egbert H. Gold, Aof Chicago, Illinois, toran'irnprovement in .Sleeping-Car Heaters, an error appears in theprinted speciication requiring 'correction as follows: Page 1, line 96,theiword that should read than;

and/that the said Letters Patent-should be read with this correctiontherein that the saine may contorni to the record ot .the case in thePatent Uli'ce.

Signed and sealed this 11th day ot April, A. D., 19M. y l

' c. o. Bunnies,

flaming' Uommissz'oner of Patent-'a Correction in Letters PatentNo.,987,570,

Carreqton IL is hereby familial thai in Lvttew Patent No 987,570,grantod March 21,

191i, upon the application of lghrfrt Il. Gold, of Chicago, Illinois,for an imprqvement in Sleeping-Car lle'ilcl's, an error appears in theprinted Spccnualion requin in f vmlcction as follows: Page l.

line 96, thc word that" should 511ml f/fm;

anf'tfhw the said Lvttel' Patent lmnlfl lm road with this corrlctiontherein that the sume maj' crmfoi'm Lo the wrm-rl of the @use in thePatent Office.

Signed and 4wealefl thi` lih luy of April, A. D., 19H.

C. C. BILLmIs,

Acz'pgi Commission@- of Pateym`

